graphic ammeter的意思|示意

'

Graphic Ammeter: Usage Explained

A graphic ammeter, or graph ammeter, is a type of electrical meter used to measure and display electrical current. It operates by measuring and displaying the magnitude of the current, as a voltage drop across a resistor, by plotting the current versus time on a graph.

The graphic ammeter works by measuring the voltage drop across a resistor, which is placed in the circuit being studied. This voltage drop is proportional to the current in the circuit, and the ammeter measures and displays this voltage difference as it changes over time. The current is then plotted on the graph, allowing the user to see how the current is changing over time. A graphic ammeter is incredibly useful for studying the behavior of electrical circuits, as well as determining the best configuration of a circuit to maximize performance.

The most common type of graphic ammeter is the digital version, which uses a digital processor to calculate and display the current reading. The digital processor can be set to a range of different time intervals, allowing the user to see how the current is changing over time, as well as to detect any changes that might occur in the circuit. Digital graphic ammeters are widely used by engineers and scientists to study the behavior of electrical circuits and systems.

Graphic ammeters can be used to measure both AC and DC currents. AC currents are measured by plotting the voltage versus time and then taking the average of the voltage values to calculate the current. DC currents can be measured by plotting the voltage versus time, and then taking the difference between the maximum and minimum values, which is then multiplied by the frequency of the DC current to calculate the current.

In conclusion, a graphic ammeter is a useful tool for measuring and displaying electrical current in circuits, allowing the user to study the behavior of the circuit and make any necessary adjustments to optimize its performance. Digital versions of the graphic ammeter are widely used by engineers, scientists, and technicians for measuring both AC and DC currents.